using System;

using Superpower.Tokenizers;

using Superpower.Parsers;

using Superpower;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var tokenizer = new TokenizerBuilder<PrjToken>()

                    .Match(Superpower.Parsers.Character.EqualTo('#'), PrjToken.Hash)

                    .Match(Span.Regex("[^\r\n#:=-]*"), PrjToken.Text)

                    .Match(Span.WhiteSpace, PrjToken.WhiteSpace)

                    .Build();

​

​

        var input = @"#Book 1

Chapter 1

Chapter 2

#Book 2

Chapter 1

Chapter 2

Chapter 3";

​

        var library = MyParsers.Library.Parse(tokenizer.Tokenize(input));

        Console.WriteLine("Parsed:\n" + library.ToString());

    }

}

​

public enum PrjToken

{

    WhiteSpace,

    Hash,

    Text

}

​

public class Book

{

    public string Title { get; set; }

    public string[] Chapters { get; set; }

​

    public Book(string title, string[] chapters)

    {

        Title = title;

        Chapters = chapters;

    }

    public override string ToString() 

    {

        return Title + ":\n" + string.Join(Environment.NewLine, Chapters.Select(x => x.ToString()));

    }

}

​

public class Library

{

    public Book[] Books { get; set; }

​

    public Library(Book[] books)

    {

        Books = books;

    }

        public override string ToString() 

    {

        return string.Join(Environment.NewLine, Books.Select(x => x.ToString()));

    }

}

​

public class MyParsers

{

    public static readonly TokenListParser<PrjToken, string> Text = from text in Token.EqualTo(PrjToken.Text)

                                                                    select text.ToStringValue();

​

    public static readonly TokenListParser<PrjToken, Superpower.Model.Token<PrjToken>> Whitespace = from text in Token.EqualTo(PrjToken.WhiteSpace)

                                                                                   select text;

​

    public static readonly TokenListParser<PrjToken, string> Title =

        from hash in Token.EqualTo(PrjToken.Hash)

        from text in Text

        from wh in Whitespace

        select text;

​

    public static readonly TokenListParser<PrjToken, string> Chapter =

        from chapterName in Text

        from wh in Whitespace

        select chapterName;

    public static readonly TokenListParser<PrjToken, Book> Book =

        from title in Title

        from chapters in Chapter.Many()

        select new Book(title, chapters);

​

    public static readonly TokenListParser<PrjToken, Library> Library =

        from books in Book.ManyDelimitedBy(Whitespace)

        select new Library(books);

}